Elimination of slip-locking in composite beam analysis by using a meshfree method

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Conference Proceeding
Research and Applications in Structural Engineering, Mechanics and Computation - Proceedings of the 5th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2013, 2013, pp. 481 - 486
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Composite beams that consist of two different components juxtaposed with a shear connection find widespread applications, especially in the floor system and bridge design. The interlayer slip between the two components significantly affects the behaviour of the composite beams, and therefore mathematical models that consider the interlayer slip is adopted in their analysis. In the numerical analysis of composite beams inconsistencies in the shape functions of the transverse and longitudinal displacement fields may cause oscillations in the slip field and reduction in the accuracy of the results known as slip-locking. In order to eliminate slip-locking, matching field strategy is adopted herein by using a meshfree method in which shape functions of the longitudinal displacement fields are obtained from the derivatives of shape functions of the transverse displacement fields. Continuous blending method is modified in order to impose the boundary conditions. © 2013 Taylor & Francis Group, London, UK.
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